gz-cmake examples fail in gz-cmake4 in Conda

[j-rivero]

Happening in #1247

Failing build https://build.osrfoundation.org/view/Conda/job/gz_cmake-4-clowin/1

Since it does not fail few days ago when the job was using -win instead of -clowin and I know that we are close to the file name characters limit, my bet is that this is the root cause of it. The gz-cmake2 PR that modified the lenght is here gazebosim/gz-cmake#463 . We can try to forward port this PR but if manual work is involved, the amount of pain is not low.

FYI @Crola1702